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WO2017135110A1 - Trémie de stockage de matière première - Google Patents

Trémie de stockage de matière première Download PDF

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Publication number
WO2017135110A1
WO2017135110A1 PCT/JP2017/002395 JP2017002395W WO2017135110A1 WO 2017135110 A1 WO2017135110 A1 WO 2017135110A1 JP 2017002395 W JP2017002395 W JP 2017002395W WO 2017135110 A1 WO2017135110 A1 WO 2017135110A1
Authority
WO
WIPO (PCT)
Prior art keywords
raw material
conveyor
screw conveyor
hopper
material storage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2017/002395
Other languages
English (en)
Japanese (ja)
Inventor
優典 和木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Satake Engineering Co Ltd
Satake Corp
Original Assignee
Satake Engineering Co Ltd
Satake Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Satake Engineering Co Ltd, Satake Corp filed Critical Satake Engineering Co Ltd
Priority to MYPI2018001392A priority Critical patent/MY189702A/en
Publication of WO2017135110A1 publication Critical patent/WO2017135110A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F25/00—Storing agricultural or horticultural produce; Hanging-up harvested fruit
    • A01F25/14—Containers specially adapted for storing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B65G65/34—Emptying devices
    • B65G65/40—Devices for emptying otherwise than from the top
    • B65G65/46—Devices for emptying otherwise than from the top using screw conveyors

Definitions

  • the present invention has a low bulk density (for example, a bulk weight of 0.4 kg / kg) such as EFB (Empty Fruit Bunches, empty fruit bunches that are processing residues of palm palm oil), grass for livestock feed, and straw.
  • the present invention relates to a raw material storage hopper for temporarily storing a string-like (or straw-like) raw material.
  • Oil palm fruits are rich in fats and oils, and useful oils can be efficiently collected for both consumer and industrial use.
  • the amount of oil collected per ha is 0.36 t / year for soybeans and 3.66 t / year for oil palm fruit. For this reason, especially oil palm is cultivated in large quantities by plantation and is actively produced.
  • palm oil is extracted from the pulp of oil palm, and palm kernel oil is obtained from the drupe.
  • fibrous oil residue and drupes remain.
  • the oil residue is called empty fruit bunches (EFB), and the components are mainly fibrous. This is crushed and pulverized into pulverized chips, and further molded (granulated) into pellets and used as biomass fuel or livestock feed.
  • EFB is an oil residue, and when it is cut or dried, it becomes a string-like (or straw-like) fiber, its bulk density is low, and its bulk weight is about 0.4 kg / liter.
  • a pellet mill In order to form (granulate) a pellet, it is necessary to temporarily store the EFB raw material and quantitatively supply it to a subsequent process such as a pellet mill.
  • Patent Document 1 discloses a square hopper having a low bulk density and temporarily storing a string-like raw material.
  • Patent Document 1 includes a rectangular hopper body, a raw material inlet portion having an opening on the top surface of the main body, a screw conveyor for discharge provided at the bottom of the main body, and a raw material outlet portion provided on the conveyance end side of the screw conveyor.
  • a square hopper configured by a slat that controls the discharge amount of the raw material at the raw material outlet portion. Then, when the raw material is introduced from the raw material inlet portion of this square hopper, the raw material is deposited on the screw conveyor, and then the raw material is transported to the transport end side, and the discharge amount is controlled by the dam plate from the raw material outlet portion.
  • the composition is such that the raw material is discharged quantitatively.
  • a technical object of the present invention to provide a raw material storage hopper capable of preventing entanglement of raw materials on a screw conveyor for discharge and preventing bridging of raw material lumps.
  • an embodiment of the present invention includes a hopper body, a raw material inlet opening the top surface of the hopper body, a discharge screw conveyor provided at the bottom of the hopper body, and a conveyance end side of the screw conveyor.
  • the reverse feeding is carried out in the direction opposite to the conveying direction of the discharging screw conveyor. It is characterized by providing technical means for disposing a screw conveyor.
  • the reverse screw conveyor includes a long rotatable conveyor shaft, a reverse spiral blade provided on the conveyor shaft, and an axis of the conveyor shaft. It comprises a plurality of stirring rods planted so as to extend in the circumferential direction.
  • the reverse screw conveyor can be finely adjusted in the vertical direction in the hopper body.
  • the screw conveyor for discharging sets the ratio of the shaft diameter of the conveyor shaft and the outer diameter of the spiral blades in a range of 1: 1.2 to 1: 1.7.
  • the shaft diameter of the conveyor shaft is increased.
  • a plurality of screw conveyors for discharge are arranged, screw ridges are provided on each screw conveyor for discharge, and a conveyance object is prevented from biting into each screw conveyor, It was configured to be isolated so as not to interfere with each other.
  • the opposing side walls of the hopper body are formed such that at least a pair of the side walls are inclined inwardly so as to be widened in the longitudinal section.
  • a hopper main body a raw material inlet portion having an open top surface of the hopper main body, a discharge screw conveyor provided at the bottom portion of the hopper main body, and a raw material outlet portion provided at the conveyance end side of the screw conveyor
  • a reverse screw conveyor that conveys in a direction opposite to the conveying direction of the discharge screw conveyor is arranged. Since technical measures have been taken, the raw material charged into the hopper body is loosened by the reverse screw conveyor before reaching the discharging screw conveyor.
  • the raw material is pushed back to the side opposite to the raw material outlet side, and the string-like raw material is prevented from being consolidated on the raw material outlet side.
  • the screw conveyor for discharging, and to suppress bridge formation due to the raw material lump.
  • FIG. 2 is a schematic sectional view taken along line AA in FIG.
  • FIG. 2 is a schematic cross-sectional view taken along the line BB in FIG.
  • FIG. 1 is a perspective view showing an entire raw material storage hopper according to the present invention
  • FIG. 2 is a schematic sectional view taken along line AA in FIG. 1
  • FIG. 3 is broken along line BB in FIG. 1
  • the raw material storage hopper 1 is surrounded by a front wall 2 a, a rear wall 2 b, a left side wall 2 c and a right side wall 2 d, and the bottom surface is closed by the bottom wall 3.
  • the upper surface of the hopper body 5 is opened as the raw material inlet 4, the discharge screw conveyor 6 is provided near the bottom (bottom wall 3) of the hopper body 5, and the conveyance end side of the discharge screw conveyor 6.
  • a raw material outlet portion 7 provided in the main portion.
  • Reference numeral 8 denotes a machine base that supports the raw material storage hopper 1, and supports the raw material storage hopper 1 by a plurality of legs 9 and a plurality of beams 10 and serves as a drive source for the screw conveyor 6. 11 and 12 are supported.
  • a chain 21 is wound between the sprocket 19 on the motor 12 side and the sprocket 20 on the conveyor 6c side, and a chain 24 is wound between the sprocket 22 on the conveyor 6c side and the sprocket 23 on the conveyor 6d side. Therefore, the motor 12 rotates the two conveyors 6c and 6d in the same direction.
  • a reverse screw conveyor 25 is disposed immediately above the discharging screw conveyor 6 in order to loosen the charged raw materials.
  • two reverse screw conveyors 25 (reference numeral 25 a and reference numeral 25 b) are juxtaposed, and the raw material is conveyed in a direction opposite to the conveying direction of the discharging screw conveyor 6. Yes. That is, referring to FIG. 4, the reverse screw conveyor 25 is provided in a long rotatable conveyor shaft 26 and a region of about one third in the length direction from the shaft end of the conveyor shaft 26. A spiral blade 27 formed in a spiral opposite to the conveyor 6 and a plurality of stirring rods extending in the circumferential direction from the axis of the conveyor shaft 26 and planted over the entire length direction 28, and the raw material introduced by the rotation of the reverse screw conveyor 25 is loosened.
  • the rotation of the reverse screw conveyor 25 is performed by transmitting the rotational force of the discharging screw conveyor 6 through a chain or the like. That is, referring to FIG. 2, a sprocket 30 is attached to the conveyor shaft 29 of the conveyor 6 a together with the sprocket 17. And since the chain 32 is wound between this sprocket 30 and the reverse screw conveyor 25 side sprocket 31, it is the structure rotated in the same direction with rotation of the conveyor 6a.
  • the reverse screw conveyor 25 may be formed on the same spiral blade 27 as the spiral blade 36 of the discharge screw conveyor 6. In this case, the rotational direction of the reverse screw conveyor 25 is The rotation direction of the discharging screw conveyor 6 may be opposite.
  • the reverse screw conveyor 25 is provided to be bridged between the front wall 2a and the rear wall 2b of the hopper body 5.
  • the front wall 2a and the rear wall 2b are formed with long holes 33, 33 (FIG. 2), and can be finely adjusted in the vertical direction in the hopper body 5 with the attachment position of the reverse screw conveyor 25. It has become.
  • the screw conveyors 6a to 6d for discharging are provided with screw rods 34a to 34d (FIG. 3) to prevent the conveyed product from biting across the plurality of screw conveyors 6a to 6d so as not to interfere with each other. It was configured to be isolated.
  • the hopper body 5 is formed so as to be opposed to each other, that is, as shown in FIG. 1 and FIG. 3, the left side wall 2c and the right side wall 2d are inclined inward to form a divergent shape in the longitudinal section.
  • the friction coefficient on the inner surfaces of the pair of left side wall 2c and right side wall 2d is reduced, and there is an effect of reducing the occurrence of bridges when the raw material is charged.
  • raw materials are supplied from the raw material inlet 4 of the hopper body 5.
  • the raw material is loosened by the reverse feed screw conveyor 25.
  • the string-like raw material is prevented from being consolidated on the raw material outlet side.
  • entanglement of the discharge screw conveyors 6a to 6d can be prevented, and the bridging of the raw material lumps can be prevented.
  • the raw material is discharged from the raw material outlet 7 by the screw conveyors 6a to 6d at appropriate times, and is quantitatively supplied to a subsequent process such as a pellet mill.
  • the conveyor of FIG. 6B has a shaft diameter of the conveyor shaft 35 larger than that of the conveyor of FIG. 6A and the area of the spiral blade 36 is reduced, so that the amount of raw material entering between the pitches is reduced, and the fibrous raw material This is considered to be because the entanglement of the EFB fibers is reduced because the fibers are easily aligned.
  • a conveyor having a thick shaft diameter is preferable.
  • the ratio of the shaft diameter of the conveyor shaft 35 to the outer diameter of the spiral blade 36 is about 1: 2 (FIG. 6A).
  • a special screw conveyor in which the ratio of the shaft diameter of the conveyor shaft 35 and the outer diameter of the spiral blade 36 is set in the range of 1: 1.2 to 1: 1.7 as shown in FIG. 6B. It is preferable to adopt.
  • the inclination angle to the inside of the side wall is preferably in the range of 3 to 10 °. If it is larger than this angle range, the tank volume is reduced, and if it is smaller than this angle range, the effect of reducing the friction coefficient is reduced.
  • the reverse screw conveyor 25 that conveys in the direction opposite to the conveying direction of the discharging screw conveyor 6 is disposed in the hopper body 5.
  • the raw material charged into the hopper body is loosened by the reverse screw conveyor 25 before reaching the screw conveyor 6 for discharge.
  • the present invention can be applied to a raw material storage hopper for temporarily storing a string-like raw material having a low bulk density, such as EFB fiber, pasture for livestock feed, and straw.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Storage Of Harvested Produce (AREA)
  • Feeding And Watering For Cattle Raising And Animal Husbandry (AREA)

Abstract

L'invention concerne une trémie destinée à stocker une matière première, caractérisée en ce qu'afin d'empêcher la matière première de s'emmêler dans un convoyeur à vis de refoulement et d'empêcher la formation de voûtes entre des blocs de matière première, la trémie de stockage de matière première comporte un corps de trémie, une partie d'entrée de matière première qui est ouverte dans la surface supérieure du corps de trémie, un convoyeur à vis de refoulement qui est placé dans la partie inférieure du corps de trémie, et une partie de sortie de matière première placée du côté fin de transport du convoyeur à vis, un convoyeur à vis inversé servant à transporter la matière première dans une direction opposée à la direction de transport du convoyeur à vis de refoulement étant disposé à l'intérieur du corps de trémie afin de démêler la matière première qui a été chargée dans le corps de trémie.
PCT/JP2017/002395 2016-02-04 2017-01-24 Trémie de stockage de matière première Ceased WO2017135110A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MYPI2018001392A MY189702A (en) 2016-02-04 2017-01-24 Raw material storage hopper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016019378A JP6728728B2 (ja) 2016-02-04 2016-02-04 原料貯留用ホッパ
JP2016-019378 2016-02-04

Publications (1)

Publication Number Publication Date
WO2017135110A1 true WO2017135110A1 (fr) 2017-08-10

Family

ID=59499566

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/002395 Ceased WO2017135110A1 (fr) 2016-02-04 2017-01-24 Trémie de stockage de matière première

Country Status (3)

Country Link
JP (1) JP6728728B2 (fr)
MY (1) MY189702A (fr)
WO (1) WO2017135110A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2813794C1 (ru) * 2023-06-08 2024-02-16 Государственное бюджетное образовательное учреждение высшего образования Нижегородский государственный инженерно-экономический университет (НГИЭУ) Шнековый дозатор сухих сыпучих компонентов

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109287290A (zh) * 2018-10-15 2019-02-01 连云港市农业科学院 一种水稻种子储存装置
CN110432009B (zh) * 2019-08-28 2021-04-23 安徽雪莲面粉有限责任公司 一种防止地面水渍渗入的粮食存储装置
KR102808455B1 (ko) * 2022-11-28 2025-05-22 (주)영화 그라스울 스크랩을 재활용하는 건축용 조립식 패널 제조방법 및 제조장치
JP2025006076A (ja) * 2023-06-29 2025-01-17 株式会社下瀬微生物研究所 貯留排出装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51141405A (en) * 1975-06-02 1976-12-06 Mitsui Constr Earth and sand dumping device
WO1997029330A1 (fr) * 1996-02-12 1997-08-14 Tmo Enterprises Limited Appareil distributeur
JPH10120144A (ja) * 1996-10-16 1998-05-12 Sumitomo Chem Co Ltd 粉体輸送装置
JPH11208810A (ja) * 1998-01-23 1999-08-03 Okawara Mfg Co Ltd 破砕ゴミホッパ並びにその運転方法
JP2001048287A (ja) * 1999-08-09 2001-02-20 Kyowa Eng Kk 材料貯留ホッパー、材料充填装置
JP2003048628A (ja) * 2001-08-06 2003-02-21 Mitsubishi Heavy Ind Ltd スクリュー軸式供給装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51141405A (en) * 1975-06-02 1976-12-06 Mitsui Constr Earth and sand dumping device
WO1997029330A1 (fr) * 1996-02-12 1997-08-14 Tmo Enterprises Limited Appareil distributeur
JPH10120144A (ja) * 1996-10-16 1998-05-12 Sumitomo Chem Co Ltd 粉体輸送装置
JPH11208810A (ja) * 1998-01-23 1999-08-03 Okawara Mfg Co Ltd 破砕ゴミホッパ並びにその運転方法
JP2001048287A (ja) * 1999-08-09 2001-02-20 Kyowa Eng Kk 材料貯留ホッパー、材料充填装置
JP2003048628A (ja) * 2001-08-06 2003-02-21 Mitsubishi Heavy Ind Ltd スクリュー軸式供給装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2813794C1 (ru) * 2023-06-08 2024-02-16 Государственное бюджетное образовательное учреждение высшего образования Нижегородский государственный инженерно-экономический университет (НГИЭУ) Шнековый дозатор сухих сыпучих компонентов

Also Published As

Publication number Publication date
JP2017137169A (ja) 2017-08-10
MY189702A (en) 2022-02-27
JP6728728B2 (ja) 2020-07-22

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